PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9108027-14 1997 Titration of thioredoxin reductase from human placenta with dithionite takes place in two spectral phases: formation of a thiolate-flavin charge transfer complex followed by reduction of the flavin, just as with lipoamide dehydrogenase or glutathione reductase. Dithionite 60-70 peroxiredoxin 5 Homo sapiens 13-34 8664271-17 1996 Reductive titrations show that approximately 1 equiv of sodium dithionite or NADPH is required to fully reduce C135S-C32S, and treatment with NH4Cl and DTT demonstrates that the mixed disulfide between Cys138 of TrR C135S and Cys35 of TrC32S that locks the structure in a conformation where FAD can be reduced by NADPH, but electrons cannot flow from FADH2 to the mixed disulfide bond. Dithionite 56-73 peroxiredoxin 5 Homo sapiens 212-215